Delay In Walking

Last updated by Peer reviewed by Dr Toni Hazell
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Professional Reference articles are designed for health professionals to use. They are written by UK doctors and based on research evidence, UK and European Guidelines. You may find the Cerebral Palsy article more useful, or one of our other health articles.

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Most developmental screening is done by health visitors but, if they suspect a problem, they will bring it to the attention of the GP. Hence, even doctors who are not directly involved in developmental assessment must have knowledge of normal development.

If a child has failed to reach a milestone at a given time but appears to be on the threshold of achieving it then a safe option is to review the child a month or so later to ascertain the progress made. If the child is nowhere near achievement of the milestone or there are other causes for concern then referral is required.

This is an approximate guide to some of the gross motor development of a child in the first three years of life but variation is common:[1]

  • 6 weeks: sits with curved back, needs support. Head control developing. In ventral suspension (when held above couch with examiner's hand supporting the abdomen) can hold head at level of body briefly.
  • 3 months: can hold head at 90° in ventral suspension.
  • 6 months: no head lag when pulled to sit. Can sit with support. When lying face down, can lift up on forearms.
  • 9 months: gets into sitting position alone. Sits unsupported and can pivot. Crawls. (Age of crawling varies widely, and some infants never crawl.)
  • 10 months: pulls to standing and stands holding on.
  • 12 months: stands and walks with one hand held. May stand alone briefly. May walk alone.
  • 18 months: walks well. Climbs stairs holding rail. Runs. Seats self in chair.
  • 2 years: goes up and down stairs alone. Two feet per step. Kicks a ball.
  • 3 years: climbs stairs one foot per step. Able to stand on one foot for a few seconds.

Most children are able to walk alone by 11-15 months but the rate of development is very variable. Some children will fall outside the expected range and yet still walk normally in the end. Walking is considered to be delayed if it has not been achieved by 18 months.

At 12 months of age some children will walk alone. It is expected that by 18 months, a child should be able to walk well. Late walking (including bottom shuffling) may be familial, but underlying causes of late walking include neuromuscular diseases and neurological disorders such as cerebral palsy, particularly if there is also global delay with speech, hearing, vision, and fine motor milestones. Spina bifida and lysosomal storage disorders can cause delayed motor milestones, and hypermobility and developmental hip dysplasia may also present with delayed walking.[2]

Delay in motor maturation

  • Delayed motor maturation (often familial): this is the term to describe a late walker who is normal in other respects. The motor skills are of normal quality but are delayed. There may be an associated mild hypotonia. It is a diagnosis of exclusion.
  • Severe learning disabilities: there is a delay in all developmental areas but gross motor development is often less affected than fine motor skills, language and social skills. There may be some associated dysmorphic features and hypotonia is often present.

Abnormalities in muscle tone and power

Environmental factors

Either by affecting brain development or directly causing delay in walking:

  • Maternal antenatal infections or toxins.
  • Infections - eg, meningitis, encephalitis, cytomegalovirus.
  • Head injury.
  • Malnutrition.
  • In the extreme form, institutionalised babies kept in cots show delay in gross motor skills but this is rare. However, a similar process can be seen in children who have been ill and bed-bound for long periods of time. Emotional deprivation doesn't tend to affect these skills as much as others.
  • Rickets has been reported to delay walking; this is reversible if the disease is not too advanced.[4]

It is worth noting that obesity has not been proven to be causes of delayed walking.[5] The issue surrounding baby walkers is not entirely clear but research suggests that they have little effect.[6]

In assessing these children ask yourself:

  • Is this a true delay or a variation of normal?
  • Is the delay isolated or part of a broader developmental delay?
  • Are there abnormal neurological findings?
  • Are there any aetiological factors?

History

There are a number of essential questions to ask about any child suspected of developmental delay. Most of the answers should be in the 'red book', the personal health record of the child.

  • Were there any problems in pregnancy? Antepartum haemorrhage or hypertension in pregnancy may be relevant.
  • Was the child a full-term normal delivery? Prematurity and problems suggesting possible intrapartum asphyxia should be noted. Relatively few cases of cerebral palsy are due to intrapartum asphyxia.[7] As babies of earlier gestation are surviving they may be contributing to the cases of cerebral palsy.
  • Did the child feed well from the outset? A slow, floppy or irritable baby is of note.
  • Was there deep jaundice? A degree of jaundice is normal but severe jaundice can lead to kernicterus.

Past medical history

  • Has the child had any serious illnesses, such as meningitis?
  • Are there any other aspects of development that have been a cause for concern? This includes sitting, fine motor skills, speech and any other parameter.

Family history

  • When did the parents walk?
  • Are there any significant inherited conditions in the family? A family history of muscular dystrophy or some other neurological disorder may be significant.

Examination

The National Institute for Health and Care Excellence (NICE) recommends using the General Movement Assessment (GMA) during routine neonatal follow‑up assessments for children between 0 and 3 months who are at increased risk of developing cerebral palsy.[8]

Red flags

  • Poor head control or floppiness at 6 months.
  • Unable to sit unsupported at 9 months.
  • Not weight bearing through legs at 12 months.
  • Not walking at 18 months.
  • Not running at 2 years.
  • Not climbing stairs at 3 years.
  • Persistent toe walking.
  • Increased muscle tone.

Observation: put the child on the floor with some toys within easy reach whilst obtaining the history. Look for the following:

  • Does the child look normal? A syndrome like mosaic Down's syndrome may have been overlooked.
  • Does the child look well cared for? Neglect and emotional deprivation can cause developmental delay. Note the mother/child relationship.
  • Does the child seem alert and attentive? Is he or she interested in this new stranger or unconcerned about surroundings?
  • What is the resting posture? Talipes or inversion of the foot can suggest imbalance of muscle tone and neurological abnormality.

Examination is largely neurological and should be thorough. Look for strength, asymmetry of movement and the presence of primitive reflexes. Note particularly:

  • Muscle tone. Passively flex and extend the limbs and pick up the child to assess muscle tone and control. Is there any asymmetry between sides? Does the head flop on being lifted? Do tone and muscle control feel normal for a baby of this age? Cerebral palsy is associated with spasticity eventually but at an early stage flaccidity is present.
  • Try to get the child to walk. Put the child down on his or her feet, at first keeping some control over the body. Does the child bear weight, or nearly do so, or does he or she flop down? Can the child stand with support but not unaided? Hold the child standing, facing towards the mother and encourage him or her to walk a few steps to her. Make encouraging and congratulatory noises. Is the mother spontaneously doing this too?
  • Test the plantar (Babinski) response. The plantar response is extensor at birth but, by the time the child is ready to walk, the neural pathways should have become myelinated and the response should be flexor.

Investigations

A full developmental assessment is a very intricate and time-consuming task. A GP should be able to do a few basic tests and should learn the 'feel' of a normal or abnormal baby, but full assessment is best left to those with the skills, the training and the time.

If the delay in walking is isolated, with no other developmental delays noted, the only investigation required is a creatinine phosphokinase (CPK), also known as creatinine kinase (CK), level to exclude muscular dystrophy.

Children who are at increased risk of developing cerebral palsy and have abnormal features should be referred to a child development service for an urgent assessment.[8] The most common delayed motor milestones in children with cerebral palsy are:[8]

  • Not sitting by 8 months (corrected for gestational age).

  • Not walking by 18 months (corrected for gestational age).

  • Early asymmetry of hand function (hand preference) before 1 year (corrected for gestational age).

This largely depends on the underlying causes.

General points

  • If the child reached all other milestones normally and seems on the verge of achieving this one: review in one month and, if the child can walk, that is fine. If not, refer.
  • If walking seems to be the only significant delay: referral to a community paediatrician may be in order for more detailed assessment but a paediatric physiotherapist or occupational therapist may be able to take a direct referral and offer appropriate management.
  • Any other aspects of developmental delay need to be excluded or addressed. If this seems to be part of global delay, refer to a community or general paediatrician to establish the cause.
  • Delay due to neglect or poor parenting can usually be reversed provided children are given an opportunity to develop their skills. Management will involve the health visitor and child protection team to monitor and support.
  • A multidisciplinary approach may be required for more complex cases:
    • Children with severe learning disabilities may need physiotherapy to address gross motor development problems and any hypotony.
    • In cerebral palsy, community physiotherapy or occupational therapy staff may help parents maximise potential. Education and advice about assistive devices go hand in hand with physical therapy.
    • DMD patients also need physiotherapy as well as support for school. Genetic counselling is essential in these families.
  • If a diagnosis such as Down's syndrome or cerebral palsy has already been made then an explanation should be given that delayed milestones are to be expected. It may still be appropriate to involve other healthcare professionals to maximise potential.

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Further reading and references

  1. Child growth standards - Motor development milestones; World Health Organization

  2. Developmental rheumatology in children, Late walking; NICE Clinical Knowledge Summary. Last revised May 2019.

  3. Graham HK, Rosenbaum P, Paneth N, et al; Cerebral palsy. Nat Rev Dis Primers. 2016 Jan 72:15082. doi: 10.1038/nrdp.2015.82.

  4. Agarwal A, Gulati D, Rath S, et al; Rickets: a cause of delayed walking in toddlers. Indian J Pediatr. 2009 Mar76(3):269-72. Epub 2009 Apr 6.

  5. Kotlarsky P, Haber R, Bialik V, et al; Developmental dysplasia of the hip: What has changed in the last 20 years? World J Orthop. 2015 Dec 186(11):886-901. doi: 10.5312/wjo.v6.i11.886. eCollection 2015 Dec 18.

  6. Badihian S, Adihian N, Yaghini O; The Effect of Baby Walker on Child Development: A Systematic Review. Iran J Child Neurol. 2017 Fall11(4):1-6.

  7. Tollanes MC, Strandberg-Larsen K, Forthun I, et al; Cohort profile: cerebral palsy in the Norwegian and Danish birth cohorts (MOBAND-CP). BMJ Open. 2016 Sep 26(9):e012777. doi: 10.1136/bmjopen-2016-012777.

  8. Cerebral palsy in under 25s: assessment and management; NICE Guidance (January 2017)

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